Google logs over 2 billion searches per day and is the world's largest search engine. The document discusses various search operators that can be used with Google to refine searches and get more specific results, such as using "-" to exclude keywords, "filetype" to search only certain filetypes, and "site" to search within a specific website. It also notes advantages of using search operators like eliminating unwanted results and getting more focused results faster, but their limitations as well, such as Google's 10 word search limit.